Question 438 Deck General

The correct answer is C. They must carry a deep-sea hand lead. Vessels over 1600 gross tons certificated for service solely on the Great Lakes are not required to have gyro compasses (A) or magnetic compasses (B). However, they are required to carry a deep-sea hand lead under the applicable regulations. This is because the Great Lakes, while large bodies of water, are considered inland waters rather than open ocean, and the deep-sea hand lead is necessary for measuring water depth in these environments. The other options (A and B) are incorrect because they do not accurately reflect the regulatory requirements for these vessels.